by @saigowthamr

How to join strings with Delimiter in Java

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To join strings with delimiter we can use the String.joiner() method in Java.

Here is an example that joins the given strings with a delimiter -.

public class Main
{
      public static void main(String[] args) {
        String all = String.join("-","01","02","2020");
        System.out.println(all);
   }
}

Output:

01-02-2020

Similarly, in Java 8 we can also use StringJoiner class.

import java.util.StringJoiner;

public class Main
{
	public static void main(String[] args) {
	    StringJoiner all = new StringJoiner("-");
        all.add("1").add("02").add("2020");
		System.out.println(all); // 01-02-2020
	}
}